Blender - List Inputs and outputs of nodes in Blender

bsdf_shader_node_inputs.py

# LIST NODE INPUTS/OUTPUTS

import bpy

selNode = bpy.data.materials["Material"].node_tree.nodes["Principled BSDF"]

for i, o in enumerate(selNode.inputs):
   print(i, o.name)

for i, o in enumerate(selNode.outputs):
   print(i, o.name)


# Principled BSDF Outputs

# VERSION 3.4

# 0 Base Color
# 1 Subsurface
# 2 Subsurface Radius
# 3 Subsurface Color
# 4 Subsurface IOR
# 5 Subsurface Anisotropy
# 6 Metallic
# 7 Specular
# 8 Specular Tint
# 9 Roughness
# 10 Anisotropic
# 11 Anisotropic Rotation
# 12 Sheen
# 13 Sheen Tint
# 14 Clearcoat
# 15 Clearcoat Roughness
# 16 IOR
# 17 Transmission
# 18 Transmission Roughness
# 19 Emission
# 20 Emission Strength
# 21 Alpha
# 22 Normal
# 23 Clearcoat Normal
# 24 Tangent
# 25 Weight


# VERSION 3.0

# 0 Base Color
# 1 Subsurface
# 2 Subsurface Radius
# 3 Subsurface Color
# 4 Subsurface IOR
# 5 Subsurface Anisotropy
# 6 Metallic
# 7 Specular
# 8 Specular Tint
# 9 Roughness
# 10 Anisotropic
# 11 Anisotropic Rotation
# 12 Sheen
# 13 Sheen Tint
# 14 Clearcoat
# 15 Clearcoat Roughness
# 16 IOR
# 17 Transmission
# 18 Transmission Roughness
# 19 Emission
# 20 Emission Strength
# 21 Alpha
# 22 Normal
# 23 Clearcoat Normal
# 24 Tangent


# VERSION 2.8

# 0 Base Color
# 1 Subsurface
# 2 Subsurface Radius
# 3 Subsurface Color
# 4 Metallic
# 5 Specular
# 6 Specular Tint
# 7 Roughness
# 8 Anisotropic
# 9 Anisotropic Rotation
# 10 Sheen
# 11 Sheen Tint
# 12 Clearcoat
# 13 Clearcoat Roughness
# 14 IOR
# 15 Transmission
# 16 Transmission Roughness
# 17 Emission
# 18 Emission Strength
# 19 Alpha
# 20 Normal
# 21 Clearcoat Normal
# 22 Tangent